CN211474151U - Movable support bracket for coal mine excavation roadway - Google Patents
Movable support bracket for coal mine excavation roadway Download PDFInfo
- Publication number
- CN211474151U CN211474151U CN201921898360.2U CN201921898360U CN211474151U CN 211474151 U CN211474151 U CN 211474151U CN 201921898360 U CN201921898360 U CN 201921898360U CN 211474151 U CN211474151 U CN 211474151U
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- Prior art keywords
- base
- telescopic
- coal mine
- support bracket
- telescopic strut
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- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000009412 basement excavation Methods 0.000 title claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 9
- 230000005641 tunneling Effects 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of coal mining supporting devices, and discloses a movable supporting bracket for a coal mine tunneling roadway, which comprises a top beam and movable supporting units symmetrically arranged at two sides below the top beam, wherein the movable supporting units comprise a base and a slide rail, first flexible pillar and the flexible pillar of second, the back timber below is located to the base, the stiff end and the base fixed connection of first flexible pillar, the free end and the back timber fixed connection of first flexible pillar, first telescoping device's output is connected with the pulley along vertical direction, pulley and slide rail sliding connection, the stiff end and the slide rail top surface fixed connection of the flexible pillar of second, the vertical upwards extension of the free end of the flexible pillar of second, be provided with the second telescoping device between base and the flexible pillar of second, second telescoping device one end is articulated with the base, its other end is articulated with the flexible pillar of second or slide rail. The utility model provides a remove supporting structure simple structure removes process convenient and fast, need not too much manual operation, and the security is high.
Description
Technical Field
The utility model relates to a coal mining supporting device technical field particularly, relates to a colliery is tunneled and is removed supporting bracket.
Background
The roof of the existing coal mine roadway excavation working face is generally supported by an anchor net, temporary support needs to be carried out before the anchor net support, and the temporary support is carried out by a hanging (U-shaped clamp) penetrating pipe type forepoling beam which is generally adopted at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a colliery tunnelling tunnel removes supporting frame, it can remove along with the realization of tunnelling work, and remove swiftly convenient, and the human input is few, workman low in labor strength.
The embodiment of the utility model discloses a realize through following technical scheme:
a coal mine excavation roadway movable supporting support is used for supporting a roadway top plate in a coal mine roadway excavation process, and comprises a top beam and movable supporting units symmetrically arranged on two sides below the top beam, wherein each movable supporting unit comprises a base, a sliding rail, a first telescopic strut and a second telescopic strut, the base is arranged below the top beam, the fixed end of the first telescopic strut is fixedly connected with the base, the free end of the first telescopic strut is fixedly connected with the top beam, the base is provided with a first telescopic device, the output end of the first telescopic device is connected with a pulley in the vertical direction, the pulley is slidably connected with the sliding rail, the fixed end of the second telescopic strut is fixedly connected with the top surface of the sliding rail, the free end of the second telescopic strut extends vertically upwards, and a second telescopic device is arranged between the base and the second telescopic strut, one end of the second telescopic device is hinged with the base, and the other end of the second telescopic device is hinged with the second telescopic support or the sliding rail.
Through the arrangement, when a roadway is tunneled, the top beam and the second telescopic struts of the movable supporting bracket are in full contact with the top plate of the roadway to support the top plate, the supporting force of the top beam and the second telescopic struts is large in cooperation with the roadway, when the movable supporting bracket needs to be moved, the second telescopic struts of the movable supporting units on two sides below the top beam retract to enable the second telescopic struts to be separated from the top plate in the roadway, meanwhile, the first telescopic device is operated to enable the pulleys to be separated from the sliding rails, at the moment, the bottom surface of the base is in contact with the ground, and the top beam is still in a supporting state; then the telescopic amount of the second telescopic device is reduced, and at the moment, the slide rail and the second telescopic strut move forwards under the driving of the second telescopic device; after the movable support moves for a certain distance, the second telescopic strut is operated to stretch and contract, the top surface of the second telescopic strut is in contact with the top plate of the roadway to play a supporting role, then the first telescopic strut is operated to retract, the top beam is separated from the top plate of the roadway, then the first telescopic device is operated to enable the pulley to be in contact with the sliding rail again, at the moment, the second telescopic device is operated again, the base can move along the guide rail by expanding the stretching amount of the second telescopic device, and therefore the movement of the top beam is achieved; after the movement of the top beam is finished, operating the first telescopic device to separate the pulley from the slide rail, and simultaneously operating the first telescopic strut to enable the top beam to be contacted with the top plate of the roadway again to play a role in supporting; and the moving support bracket can be moved along with the tunneling operation by repeating the steps.
Optionally, one side that the back timber kept away from the flexible pillar of second is equipped with the forestope to further improve the supporting dynamics, forestope one side with the back timber is articulated, is convenient for accomodate the forestope.
Optionally, the back timber with be provided with spacing flexible post that plays limiting displacement between the base, the free end of spacing flexible post with the back timber is connected, the stiff end of spacing flexible post with base fixed connection.
Optionally, in order to prevent the slide rail from being displaced and dislocated externally in the moving process, an opening is formed in the bottom of the base, one end, away from the second telescopic pillar, of the slide rail penetrates through the opening, so that the position of a pulley mounted on the base corresponds to that of the slide rail all the time, and the first telescopic device is arranged at the top in the opening.
Optionally, the number of the first telescopic struts is two, and the second telescopic struts are respectively located on two sides of the base.
Optionally, the number of the first telescopic devices is two, and the two first telescopic devices are respectively located on two sides of the base.
Optionally, the front cantilever comprises a first cross beam and a first longitudinal beam, the first cross beam and the first longitudinal beam enclose a trapezoid structure, and a lower bottom of the front cantilever is hinged to the top beam.
Optionally, a first reinforcing beam is arranged between the first longitudinal beams.
Optionally, the top beam includes a second cross beam and a second longitudinal beam, the second cross beam and the second longitudinal beam enclose a square structure, and a second reinforcing beam is arranged between the second longitudinal beams.
Optionally, the end part of the slide rail, which is far away from one end of the second telescopic strut, is provided with an inclined part, and an included angle between the inclined part and the horizontal plane is an acute angle.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
the utility model provides a remove supporting structure simple, remove process convenient and fast, need not too much manual operation, remove the input of the in-process saving manpower, the security is high, whole process need not to lift the support around the manual work and again erect the support.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a front view of a mobile support bracket according to an embodiment of the present invention;
fig. 2 is a side view of a mobile support bracket according to an embodiment of the present invention;
fig. 3 is a top view of a top beam according to an embodiment of the present invention.
Icon: 1-top beam, 101-second cross beam, 102-second longitudinal beam, 103-second reinforcing beam, 2-base, 3-sliding rail, 301-inclined part, 4-first telescopic strut, 5-second telescopic strut, 6-first telescopic device, 7-pulley, 8-second telescopic device, 9-forepoling beam, 901-first cross beam, 902-first longitudinal beam, 903-first reinforcing beam, 10-spacing telescopic column.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
The embodiment of the utility model discloses a realize through following technical scheme:
referring to fig. 1 to 3, a movable support bracket for a coal mine excavation roadway, which is used for supporting a roadway roof during the coal mine excavation process, comprises a top beam 1 and movable support units symmetrically arranged on two sides below the top beam 1, wherein each movable support unit comprises a base 2, a slide rail 3, a first telescopic strut 4 and a second telescopic strut 5, the base 2 is arranged below the top beam 1, the fixed end of the first telescopic strut 4 is fixedly connected with the base 2 through a pin shaft, the free end of the first telescopic strut 4 is fixedly connected with the top beam 1 through a pin shaft, the base 2 is provided with a first telescopic device 6, the output end of the first telescopic device 6 is connected with a pulley 7 along the vertical direction, the pulley 7 is slidably connected with the slide rail 3, the fixed end of the second telescopic strut 5 is fixedly connected with the top surface of the slide rail 3 through a pin shaft, and the free end of the second telescopic strut 5 extends vertically upwards, a second telescopic device 8 is arranged between the base 2 and the second telescopic strut 5, one end of the second telescopic device 8 is hinged with the base 2 through a pin shaft, and the other end of the second telescopic device 8 is hinged with the second telescopic strut 5 or the slide rail 3 through a pin shaft.
In this embodiment, a front canopy 9 is disposed on a side of the top beam 1 away from the second telescopic strut 5 to further improve the supporting strength, and meanwhile, one side of the front canopy 9 is hinged to the top beam 1 to facilitate accommodating the front canopy 9;
the front cantilever 9 comprises a first cross beam 901 and a first longitudinal beam 902, the first cross beam 901 and the first longitudinal beam 902 enclose a trapezoidal structure to improve the structural strength, the first longitudinal beam 902 used for enclosing the trapezoidal structure is respectively used as an upper bottom and a lower bottom of the trapezoidal structure, and the lower bottom of the front cantilever 9 is hinged with the top beam 1 through a pin shaft;
in addition, a first reinforcing beam 903 is disposed between the two first longitudinal beams 902 to further improve the structural strength.
In this embodiment, be provided with spacing flexible post 10 that plays limiting displacement between foretell back timber 1 and the base 2, the free end and the back timber 1 of spacing flexible post 10 are through round pin hub connection, and the stiff end and the base 2 of spacing flexible post 10 are through round pin axle fixed connection, and the removal that back timber 1 can be followed to spacing flexible post 10 realizes contracting.
In this embodiment, in order to prevent that slide rail 3 from shifting dislocation at the position of removal in-process, base 2 bottom is equipped with the opening, and slide rail 3 is kept away from 5 one end of second telescopic strut and is passed the opening to guarantee that the position of pulley 7 of installation on base 2 and slide rail 3 corresponds all the time, prevent that slide rail 3 from controlling the skew, the top in the opening is located to aforementioned first telescoping device 6 simultaneously, plays certain guard action to first telescoping device 6 through base 2.
In this embodiment, the number of the first telescopic pillars 4 is two, and the two second telescopic pillars 4 are respectively located at two sides of the base 2.
In this embodiment, the number of the first telescopic devices 6 is two, and the two first telescopic devices 6 are respectively located at two sides of the base 2, it should be noted that the pulley 7 may be replaced by other similar sliding members, such as a pulley block, a sliding shoe, and the like.
In this embodiment, the top beam 1 includes a second cross beam 101 and a second longitudinal beam 102, the second cross beam 101 and the second longitudinal beam 102 enclose a square structure, and a second reinforcing beam 103 for improving the structural strength of the top beam 1 is disposed between the second longitudinal beams 102.
In this embodiment, in order to prevent the slide rail 3 from being blocked in the process of moving forward, which results in the need of manual cleaning, an inclined portion 301 is disposed at the end of the slide rail 3 far away from the second telescopic pillar 5, and the included angle between the inclined portion 301 and the horizontal plane is an acute angle.
The workflow of this embodiment is as follows: in a supporting state, the top surfaces of the top beam 1 and the second telescopic strut 5 are fully contacted with a top plate in a roadway to play a role of supporting the top plate, the top surfaces of the top beam 1 and the second telescopic strut 5 are matched with the top plate in the roadway, and supporting strength is large, along with the progress of roadway excavation work, when the movable supporting bracket needs to be moved, the second telescopic struts 5 of the movable supporting units on two sides below the top beam 1 are retracted firstly, so that the second telescopic struts 5 are separated from the top plate in the roadway, meanwhile, the first telescopic device 6 is operated to separate the pulleys 7 from the sliding rails 3, at the moment, the bottom surface of the base 2 is contacted with the ground, and the; then, the telescopic amount of the second telescopic device 8 is reduced, and at the moment, the slide rail 3 and the second telescopic strut 5 move forwards under the driving of the second telescopic device 8; after moving for a certain distance, operating the second telescopic strut 5 to stretch and contract to enable the top surface of the second telescopic strut to be in contact with the top plate of the roadway to play a supporting role, then operating the first telescopic strut 4 to retract to enable the top beam 1 to be separated from the top plate of the roadway, then operating the first telescopic device 6 to enable the pulley 7 to be in contact with the slide rail 3 again, then operating the second telescopic device 8 again, and enabling the base 2 to move along the slide rail 3 by expanding the stretching amount of the second telescopic device 8, so that the movement of the top beam 1 is realized; after the movement of the top beam 1 is finished, operating the first telescopic device 6 to separate the pulley 7 from the slide rail 3, and operating the first telescopic strut 4 to enable the top beam 1 to be contacted with the top plate of the roadway again to play a role in supporting; and the moving support bracket can be moved along with the tunneling operation by repeating the steps.
To sum up, the embodiment of the utility model provides a remove supporting structure simple structure, cost of manufacture are low, remove process convenient and fast, need not too much manual operation, remove the input that the in-process saved the manpower, and the security is high, and whole process lifts the support around need not the manual work and erects the support repeatedly.
And simultaneously, the utility model discloses remove support self weight and appearance all can design according to actual conditions, can be applicable to the less tunnel of terminal surface, and easy operation is fast at removal in-process, and is short to production operation influence time, has effectively guaranteed operation safety.
It should be noted that, in the present embodiment, the first telescopic strut 4 and the second telescopic strut 5 may be selected but not limited to hydraulic telescopic struts, the first telescopic device 6 and the second telescopic device 8 may be selected but not limited to jacks, the selection of the specific telescopic strut and telescopic device is determined according to actual conditions, and the selection of the appropriate telescopic strut and telescopic device is the prior art for those skilled in the art, and will not be described herein in too much detail.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a colliery tunnelling tunnel removes and struts support, include back timber and symmetry set up in the removal support element of back timber below both sides, its characterized in that: the movable supporting unit comprises a base, a sliding rail, a first telescopic strut and a second telescopic strut, wherein the base is arranged below the top beam, the fixed end of the first telescopic strut is fixedly connected with the base, the free end of the first telescopic strut is fixedly connected with the top beam, a first telescopic device is arranged on the base, the output end of the first telescopic device is connected with a pulley along the vertical direction, the pulley is slidably connected with the sliding rail, the fixed end of the second telescopic strut is fixedly connected with the top surface of the sliding rail, the free end of the second telescopic strut vertically extends upwards, the base is provided with a second telescopic device between the second telescopic struts, one end of the second telescopic device is hinged with the base, and the other end of the second telescopic strut is hinged with the sliding rail.
2. The movable support bracket for the coal mine excavation roadway according to claim 1, characterized in that: and a front cantilever is arranged on one side of the top beam, which is far away from the second telescopic strut, and one side of the front cantilever is hinged with the top beam.
3. The movable support bracket for the coal mine excavation roadway according to claim 1, characterized in that: the top beam with be provided with spacing flexible post between the base, the free end of spacing flexible post with the top beam is connected, the stiff end of spacing flexible post with base fixed connection.
4. The movable support bracket for the coal mine excavation roadway according to claim 1, characterized in that: the base bottom is equipped with the opening, the slide rail is kept away from second telescopic support one end passes the opening, first telescoping device is located top in the opening.
5. The movable support bracket for the coal mine excavation roadway according to claim 1, characterized in that: the quantity of first telescopic strut is two, two the second telescopic strut is located respectively the both sides of base.
6. The coal mine excavation roadway mobile support bracket according to claim 1 or 4, characterized in that: the number of the first telescopic devices is two, and the two first telescopic devices are respectively positioned on two sides of the base.
7. The movable support bracket for the coal mine excavation roadway according to claim 2, characterized in that: the front canopy comprises a first cross beam and a first longitudinal beam, the first cross beam and the first longitudinal beam enclose a trapezoid structure, and the lower bottom of the front canopy is hinged to the top beam.
8. The movable support bracket for the coal mine excavation roadway according to claim 7, characterized in that: a first reinforcing beam is arranged between the first longitudinal beams.
9. The movable support bracket for the coal mine excavation roadway according to claim 1, characterized in that: the top beam comprises a second cross beam and a second longitudinal beam, the second cross beam and the second longitudinal beam form a square structure in a surrounding mode, and a second reinforcing beam is arranged between the second longitudinal beams.
10. The movable support bracket for the coal mine excavation roadway according to claim 1, characterized in that: the end part of the slide rail, which is far away from one end of the second telescopic strut, is provided with an inclined part, and an included angle between the inclined part and the horizontal plane is an acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921898360.2U CN211474151U (en) | 2019-11-05 | 2019-11-05 | Movable support bracket for coal mine excavation roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921898360.2U CN211474151U (en) | 2019-11-05 | 2019-11-05 | Movable support bracket for coal mine excavation roadway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211474151U true CN211474151U (en) | 2020-09-11 |
Family
ID=72374950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921898360.2U Expired - Fee Related CN211474151U (en) | 2019-11-05 | 2019-11-05 | Movable support bracket for coal mine excavation roadway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211474151U (en) |
-
2019
- 2019-11-05 CN CN201921898360.2U patent/CN211474151U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |